Home / 19,478.56-26,885.93-11,523.55

Finding the Fourth Proportional to 19,478.56, 26,885.93 and 11,523.55

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Solution

The fourth proportional to 19,478.56, 26,885.93 and 11,523.55 is: 15,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.56 : 26,885.93 = 11,523.55 : x
  2. Step 2: Convert to fraction form
    19,478.56/26,885.93 = 11,523.55/x
  3. Step 3: Cross multiply
    19,478.56x = 26,885.93 × 11,523.55
  4. Step 4: Simplify right side
    19,478.56x = 309,821,358.65
  5. Step 5: Solve for x
    x = 309,821,358.65/19,478.56
  6. Step 6: Final answer
    x = 15,905.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.